Summary Observations (DSI-3290)Entry ID: gov.noaa.ncdc.C00216
Abstract: Summary Observations is historical digital data set DSI-3290, archived at the National Climatic Data Center (NCDC). Summary Observations is sometimes called 6 hourly data. DSI-3290 data were collected primarily at major airports and military bases by trained personnel or automated equipment that had been tested by the controlling agency. The controlling agencies were the National Weather Service ... (NWS), the Federal Aviation Administration (FAA), the US Air Force, and the US Navy. The NWS and FAA sites are located in the US, Puerto Rico, the Pacific islands of Guam and American Samoa, and the Pacific Ocean nations of Palau, Marshall Islands, and Micronesia. This Summary Observation data set contains surface synoptic data from the NWS Form MF1-10B and the forms that have replaced them. DSI-3290 has the following major parameters: Maximum and minimum temperatures, precipitation, snow, and snow depth. For a station outside the US, DSI-3290 data has four data values per day for each parameter. Data values are for 0000, 0600, 1200, and 1800 Greenwich Mean Time (GMT). Each data value represents a parameter value for the 6-hour interval since the previous time (hence, "6-hourly"). Times actually given are 15 minutes earlier (e.g. 0000 is 2345, 0600 is 0545, 1200 is 1145, and 1800 is 1745). For a station inside the US, there are generally six data values per parameter per day. Times are given in local standard time (LST). The purpose of using LST and having two extra data values is to "align" the GMT day with the local day. The second through fifth data values correspond to the four data values of a non-US station; but the times are expressed as the LST equivalent of each GMT. Minutes are always 45, as with a non-US station. The first and sixth data values are the "alignment" values: The first data value has the same time as the second data value, but the first value represents the parameter between local midnight and the given time, instead of a 6-hourly interval. The sixth data value has a time of 2400, and represents the parameter for the time interval between the previous data value and local midnight, instead of a 6-hourly interval.
Purpose: To make a wide range of climatic data available to researchers and the public.
SUPPLEMENTAL INFORMATION: data set
CURRENTNESS REFERENCE: Ground Condition
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Data Set Citation
Dataset Originator/Creator: National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Dataset Title: Summary Observations (DSI-3290)
Dataset Release Date: Unknown
Data Presentation Form: tabular digital dataOnline Resource: http://www.ncdc.noaa.gov
Start Date: 1989-07-09
ISO Topic Category
Quality ATTRIBUTE ACCURACY REPORT: Not provided
LOGICAL CONSISTENCY REPORT: Unknown
COMPLETENESS REPORT: Completeness information not available.
PROCESS DESCRIPTION: Derived from data recorded on National Weather Service Form MF1-10B and later forms that replaced it.
PROCESS DATE: Unknown
Access Constraints ACCESS CONSTRAINTS: None
DISTRIBUTION LIABILITY: Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Use Constraints None
Data Set Progress
Role: DIF AUTHOR
Email: ncdc.orders at noaa.gov
151 Patton Avenue, Room 120
Province or State: NC
Postal Code: 28801-5001
Creation and Review Dates
DIF Creation Date: 2006-06-27
Last DIF Revision Date: 2009-04-20